Rear bumper for an automobile



FIG. 1 is a front perspective view of a rear bumper for an automobile ofour new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right-side view thereof; and,

FIG. 7 is a left-side view thereof.

A second embodiment of the design is depicted in FIGS. 1, 2 and 4-7without the rear view of FIG. 3.

The ornamental design for a rear bumper for an automobile, as shown anddescribed.